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John Mayer has been forced to cancel his appearance at this weekend's T In The Park festival in Scotland.
The US singer has pulled out “due to unforeseen circumstances”, organisers told Gigwise.
The festival, which takes place from July 9-11, is due to be headlined by Muse, Kasabian and Eminem.
Other acts on the bill include Jay-Z, 30 Seconds To Mars, Babyshambles, D12 and Florence & The Machine.
For more information about T In The Park and all this summer's festivals, check out the Gigwise Festival Guide.
T In The Park - 2009
